<template>
  <div class="container">
    <el-card class="articles">
      <el-row>
        <el-col :span="18">
          <el-form label-width="80px" size="small" :inline="true">
            <el-form-item label="关键字">
              <el-input
                v-model="page.keyword"
                placeholder="根据文章标题搜索"
              ></el-input>
            </el-form-item>
            <el-form-item label="状态">
              <el-select v-model="page.state" placeholder="请选择">
                <el-option :value="1" label="启用"></el-option>
                <el-option :value="0" label="禁用"></el-option>
              </el-select>
            </el-form-item>
            <el-form-item>
              <el-button @click="clear">清除</el-button>
              <el-button @click="filter" type="primary">搜索</el-button>
            </el-form-item>
          </el-form>
        </el-col>
        <el-col :span="6" style="text-align: right">
          <el-button
            type="success"
            icon="el-icon-edit"
            size="small"
            @click="openDialog"
            >新增技巧</el-button
          >
        </el-col>
      </el-row>

      <el-row>
        <el-alert
          :title="`数据一共 ${total} 条`"
          type="info"
          show-icon
          :closable="false"
        ></el-alert>
      </el-row>
      <el-table
        :data="articlesList"
        :header-cell-style="{ background: '#fafafa' }"
        style="margin-top: 20px"
      >
        <el-table-column
          label="序号"
          type="index"
          width="80px"
        ></el-table-column>
        <el-table-column label="文章标题" prop="title" width="400px">
          <template slot-scope="{ row }">
            {{ row.title }}
            <el-button
              v-show="row.videoURL !== null"
              type="text"
              icon="el-icon-film"
            ></el-button>
          </template>
        </el-table-column>
        <el-table-column label="阅读数" prop="visits"></el-table-column>
        <el-table-column label="录入人" prop="username"> </el-table-column>
        <el-table-column label="录入时间" prop="createTime">
          <template slot-scope="{ row }">
            {{ row.createTime | parseTimeByString }}
          </template>
        </el-table-column>
        <el-table-column label="状态" prop="state" width="100px">
          <template slot-scope="{ row }">
            {{ row.state == "1" ? "已启用" : "已禁用" }}
          </template>
        </el-table-column>
        <el-table-column
          label="操作"
          fixed="right"
          align="center"
          width="180px"
        >
          <template slot-scope="{ row }">
            <el-button type="text" @click="previewArticle(row)">预览</el-button>
            <el-button type="text" @click="toggleState(row)">
              {{ row.state === 1 ? "禁用" : "启用" }}
            </el-button>
            <el-button
              type="text"
              @click="openDialog(row)"
              :disabled="row.state === 1"
              >修改</el-button
            >
            <el-button
              type="text"
              @click="delArticle(row)"
              :disabled="row.state === 1"
              >删除</el-button
            >
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        background
        style="margin-top: 20px; text-align: right"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="page.page"
        :page-sizes="[5, 10, 20, 50]"
        :page-size="page.pagesize"
        layout=" prev, pager, next,sizes, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 预览 -->
    <articles-preview
      :showPreDialog.sync="showPreDialog"
      :currArticle="currArticle"
    ></articles-preview>
    <!-- 添加/修改 -->
    <articles-add
      :showDialog.sync="showDialog"
      :currArticle="currArticle"
      @updateList="updateList"
    ></articles-add>
  </div>
</template>

<script>
import { list, changeState, remove } from "@/api/hmmm/articles";
import articlesPreview from "../components/articles-preview.vue";
import articlesAdd from "../components/articles-add.vue";
export default {
  components: { articlesPreview, articlesAdd },
  data() {
    return {
      articlesList: [],
      currArticle: {},
      total: 0,
      page: {
        page: 1,
        pagesize: 10,
        keyword: null,
        state: null,
      },
      showDialog: false, //新增、修改
      showPreDialog: false, //预览
    };
  },
  created() {
    this.getArticlesList();
  },
  methods: {
    async getArticlesList() {
      const { data } = await list(this.page);
      // console.log(data);
      this.total = data.counts;
      this.articlesList = data.items;
    },
    handleSizeChange(val) {
      this.page.pagesize = val;
      this.getArticlesList();
    },
    handleCurrentChange(val) {
      this.page.page = val;
      this.getArticlesList();
    },
    clear() {
      this.page = {
        page: 1,
        pagesize: 10,
        keyword: null,
        state: null,
      };
      this.getArticlesList();
    },
    filter() {
      this.page.page = 1;
      this.getArticlesList();
    },
    async toggleState(row) {
      await changeState({
        id: row.id,
        state: row.state === 1 ? 0 : 1,
      });
      this.$message.success("操作成功");
      this.getArticlesList();
    },
    previewArticle(row) {
      this.currArticle = row;
      this.showPreDialog = true;
    },
    openDialog(row) {
      this.currArticle = row.id ? row : {};
      this.showDialog = true;
    },
    updateList() {
      if (!this.currArticle.id) this.page.page = 1;
      this.getArticlesList();
    },
    async delArticle(row) {
      await this.$confirm("此操作将永久删除该文章, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      });
      await remove(row);
      this.$message.success("删除成功");
      this.getArticlesList();
    },
  },
};
</script>

<style scoped lang='scss'>
.articles {
  margin: 10px;
}
</style>
